CVE-2021-36845 (GCVE-0-2021-36845)

Vulnerability from cvelistv5 – Published: 2021-09-27 15:36 – Updated: 2025-03-28 16:49
VLAI?
Title
YITH Maintenance Mode (WordPress plugin) <= 1.3.8 - Multiple Authenticated Stored Cross-Site Scripting (XSS) vulnerabilities
Summary
Multiple Authenticated Stored Cross-Site Scripting (XSS) vulnerabilities in YITH Maintenance Mode (WordPress plugin) versions <= 1.3.8, there are 46 vulnerable parameters that were missed by the vendor while patching the 1.3.7 version to 1.3.8. Vulnerable parameters: 1 - "Newsletter" tab, &yith_maintenance_newsletter_submit_label parameter: payload should start with a single quote (') symbol to break the context, i.e.: NOTIFY ME' autofocus onfocus=alert(/Visse/);// v=' - this payload will be auto triggered while admin visits this page/tab. 2 - "General" tab issues, vulnerable parameters: &yith_maintenance_message, &yith_maintenance_custom_style, &yith_maintenance_mascotte, &yith_maintenance_title_font[size], &yith_maintenance_title_font[family], &yith_maintenance_title_font[color], &yith_maintenance_paragraph_font[size], &yith_maintenance_paragraph_font[family], &yith_maintenance_paragraph_font[color], &yith_maintenance_border_top. 3 - "Background" tab issues, vulnerable parameters: &yith_maintenance_background_image, &yith_maintenance_background_color. 4 - "Logo" tab issues, vulnerable parameters: &yith_maintenance_logo_image, &yith_maintenance_logo_tagline, &yith_maintenance_logo_tagline_font[size], &yith_maintenance_logo_tagline_font[family], &yith_maintenance_logo_tagline_font[color]. 5 - "Newsletter" tab issues, vulnerable parameters: &yith_maintenance_newsletter_email_font[size], &yith_maintenance_newsletter_email_font[family], &yith_maintenance_newsletter_email_font[color], &yith_maintenance_newsletter_submit_font[size], &yith_maintenance_newsletter_submit_font[family], &yith_maintenance_newsletter_submit_font[color], &yith_maintenance_newsletter_submit_background, &yith_maintenance_newsletter_submit_background_hover, &yith_maintenance_newsletter_title, &yith_maintenance_newsletter_action, &yith_maintenance_newsletter_email_label, &yith_maintenance_newsletter_email_name, &yith_maintenance_newsletter_submit_label, &yith_maintenance_newsletter_hidden_fields. 6 - "Socials" tab issues, vulnerable parameters: &yith_maintenance_socials_facebook, &yith_maintenance_socials_twitter, &yith_maintenance_socials_gplus, &yith_maintenance_socials_youtube, &yith_maintenance_socials_rss, &yith_maintenance_socials_skype, &yith_maintenance_socials_email, &yith_maintenance_socials_behance, &yith_maintenance_socials_dribble, &yith_maintenance_socials_flickr, &yith_maintenance_socials_instagram, &yith_maintenance_socials_pinterest, &yith_maintenance_socials_tumblr, &yith_maintenance_socials_linkedin.
Severity ?
6.9 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N
CWE
  • CWE-79 - Cross-site Scripting (XSS)
Assigner
References
Impacted products
Vendor Product Version
YITH YITH Maintenance Mode (WordPress plugin) Affected: <= 1.3.8 , ≤ 1.3.8 (custom)
Create a notification for this product.
Credits
Original researcher - Vlad Visse (Patchstack), research based on previously reported vulnerability by Asif Nawaz Minhas (Patchstack Red Team)
Show details on NVD website
To clipboard 

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Par\\u00e1metros vulnerables: 1 - Pesta\\u00f1a \\\"Newsletter\\\", par\\u00e1metro \u0026amp;yith_maintenance_newsletter_submit_label: el payload debe comenzar con un s\\u00edmbolo de comillas simples (\u0027) para romper el contexto, es decir: NOTIFY ME\u0027 autofocus onfocus=alert(/Visse/);// v=\u0027 - este payload se autodesencadenar\\u00e1 mientras el administrador visite esta p\\u00e1gina/pesta\\u00f1a. 2 - Problemas de la pesta\\u00f1a \\\"General\\\", par\\u00e1metros vulnerables: \u0026amp;yith_maintenance_message, \u0026amp;yith_maintenance_custom_style, \u0026amp;yith_maintenance_mascotte, \u0026amp;yith_maintenance_title_font[size], \u0026amp;yith_maintenance_title_font[family], \u0026amp;yith_maintenance_title_font[color], \u0026amp;yith_maintenance_paragraph_font[size], \u0026amp;yith_maintenance_paragraph_font[family], \u0026amp;yith_maintenance_paragraph_font[color], \u0026amp;yith_maintenance_border_top. 3 - Problemas con la pesta\\u00f1a \\\"Background\\\", par\\u00e1metros vulnerables: \u0026amp;yith_maintenance_background_image, \u0026amp;yith_maintenance_background_color. 4 - Problemas con la pesta\\u00f1a \\\"Logo\\\", par\\u00e1metros vulnerables: \u0026amp;yith_maintenance_logo_image, \u0026amp;yith_maintenance_logo_tagline_font, \u0026amp;yith_maintenance_logo_tagline_font[size], \u0026amp;yith_maintenance_logo_tagline_font[family], \u0026amp;yith_maintenance_logo_tagline_font[color]. 5 - Problemas con la pesta\\u00f1a \\\"Newsletter\\\", par\\u00e1metros vulnerables: \u0026amp;yith_maintenance_newsletter_email_font[size], \u0026amp;yith_maintenance_newsletter_email_font[family], \u0026amp;yith_maintenance_newsletter_email_font[color], \u0026amp;yith_maintenance_newsletter_submit_font[size], \u0026amp;yith_maintenance_newsletter_submit_font[family], \u0026amp;yith_maintenance_newsletter_submit_font[color], \u0026amp;yith_maintenance_newsletter_submit_background, \u0026amp;yith_maintenance_newsletter_submit_background_hover, \u0026amp;yith_maintenance_newsletter_title, \u0026amp;yith_maintenance_newsletter_action, \u0026amp;yith_maintenance_newsletter_email_label, \u0026amp;yith_maintenance_newsletter_email_name, \u0026amp;yith_maintenance_newsletter_submit_label, \u0026amp;yith_maintenance_newsletter_hidden_fields. 6 - Problemas de la pesta\\u00f1a \\\"Socials\\\", par\\u00e1metros vulnerables: \u0026amp;yith_maintenance_socials_facebook, \u0026amp;yith_maintenance_socials_twitter, \u0026amp;yith_maintenance_socials_gplus, \u0026amp;yith_maintenance_socials_youtube, \u0026amp;yith_maintenance_socials_rss, \u0026amp;yith_maintenance_socials_skype, \u0026amp;yith_maintenance_socials_email, \u0026amp;yith_maintenance_socials_behance, \u0026amp;yith_maintenance_socials_dribble, \u0026amp;yith_maintenance_socials_flickr, \u0026amp;yith_maintenance_socials_instagram, \u0026amp;yith_maintenance_socials_pinterest, \u0026amp;yith_maintenance_socials_tumblr, \u0026amp;yith_maintenance_socials_linkedin\"}]",
      "id": "CVE-2021-36845",
      "lastModified": "2024-11-21T06:14:10.960",
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      "published": "2021-09-27T16:15:09.377",
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Par\u00e1metros vulnerables: 1 - Pesta\u00f1a \\\"Newsletter\\\", par\u00e1metro \u0026amp;yith_maintenance_newsletter_submit_label: el payload debe comenzar con un s\u00edmbolo de comillas simples (\u0027) para romper el contexto, es decir: NOTIFY ME\u0027 autofocus onfocus=alert(/Visse/);// v=\u0027 - este payload se autodesencadenar\u00e1 mientras el administrador visite esta p\u00e1gina/pesta\u00f1a. 2 - Problemas de la pesta\u00f1a \\\"General\\\", par\u00e1metros vulnerables: \u0026amp;yith_maintenance_message, \u0026amp;yith_maintenance_custom_style, \u0026amp;yith_maintenance_mascotte, \u0026amp;yith_maintenance_title_font[size], \u0026amp;yith_maintenance_title_font[family], \u0026amp;yith_maintenance_title_font[color], \u0026amp;yith_maintenance_paragraph_font[size], \u0026amp;yith_maintenance_paragraph_font[family], \u0026amp;yith_maintenance_paragraph_font[color], \u0026amp;yith_maintenance_border_top. 3 - Problemas con la pesta\u00f1a \\\"Background\\\", par\u00e1metros vulnerables: \u0026amp;yith_maintenance_background_image, \u0026amp;yith_maintenance_background_color. 4 - Problemas con la pesta\u00f1a \\\"Logo\\\", par\u00e1metros vulnerables: \u0026amp;yith_maintenance_logo_image, \u0026amp;yith_maintenance_logo_tagline_font, \u0026amp;yith_maintenance_logo_tagline_font[size], \u0026amp;yith_maintenance_logo_tagline_font[family], \u0026amp;yith_maintenance_logo_tagline_font[color]. 5 - Problemas con la pesta\u00f1a \\\"Newsletter\\\", par\u00e1metros vulnerables: \u0026amp;yith_maintenance_newsletter_email_font[size], \u0026amp;yith_maintenance_newsletter_email_font[family], \u0026amp;yith_maintenance_newsletter_email_font[color], \u0026amp;yith_maintenance_newsletter_submit_font[size], \u0026amp;yith_maintenance_newsletter_submit_font[family], \u0026amp;yith_maintenance_newsletter_submit_font[color], \u0026amp;yith_maintenance_newsletter_submit_background, \u0026amp;yith_maintenance_newsletter_submit_background_hover, \u0026amp;yith_maintenance_newsletter_title, \u0026amp;yith_maintenance_newsletter_action, \u0026amp;yith_maintenance_newsletter_email_label, \u0026amp;yith_maintenance_newsletter_email_name, \u0026amp;yith_maintenance_newsletter_submit_label, \u0026amp;yith_maintenance_newsletter_hidden_fields. 6 - 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\\\"Newsletter\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_newsletter_email_font[size], \u0026yith_maintenance_newsletter_email_font[family], \u0026yith_maintenance_newsletter_email_font[color], \u0026yith_maintenance_newsletter_submit_font[size], \u0026yith_maintenance_newsletter_submit_font[family], \u0026yith_maintenance_newsletter_submit_font[color], \u0026yith_maintenance_newsletter_submit_background, \u0026yith_maintenance_newsletter_submit_background_hover, \u0026yith_maintenance_newsletter_title, \u0026yith_maintenance_newsletter_action, \u0026yith_maintenance_newsletter_email_label, \u0026yith_maintenance_newsletter_email_name, \u0026yith_maintenance_newsletter_submit_label, \u0026yith_maintenance_newsletter_hidden_fields. 6 - \\\"Socials\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_socials_facebook, \u0026yith_maintenance_socials_twitter, \u0026yith_maintenance_socials_gplus, \u0026yith_maintenance_socials_youtube, \u0026yith_maintenance_socials_rss, \u0026yith_maintenance_socials_skype, \u0026yith_maintenance_socials_email, \u0026yith_maintenance_socials_behance, \u0026yith_maintenance_socials_dribble, \u0026yith_maintenance_socials_flickr, \u0026yith_maintenance_socials_instagram, \u0026yith_maintenance_socials_pinterest, \u0026yith_maintenance_socials_tumblr, \u0026yith_maintenance_socials_linkedin.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Cross-site Scripting (XSS)\"}]}], \"providerMetadata\": {\"orgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"shortName\": \"Patchstack\", \"dateUpdated\": \"2021-09-27T15:36:56.000Z\"}, \"x_legacyV4Record\": {\"credit\": [{\"lang\": \"eng\", \"value\": \"Original researcher - Vlad Visse (Patchstack), research based on previously reported vulnerability by Asif Nawaz Minhas (Patchstack Red Team)\"}], \"impact\": {\"cvss\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.9, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}, \"source\": {\"discovery\": \"EXTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_name\": \"\u003c= 1.3.8\", \"version_value\": \"1.3.8\", \"version_affected\": \"\u003c=\"}]}, \"product_name\": \"YITH Maintenance Mode (WordPress plugin)\"}]}, \"vendor_name\": \"YITH\"}]}}, \"solution\": [{\"lang\": \"en\", \"value\": \"Update to 1.4.0 or higher version.\"}], \"data_type\": \"CVE\", \"generator\": {\"engine\": \"Vulnogram 0.0.9\"}, \"references\": {\"reference_data\": [{\"url\": \"https://wordpress.org/plugins/yith-maintenance-mode/#developers\", \"name\": \"https://wordpress.org/plugins/yith-maintenance-mode/#developers\", \"refsource\": \"CONFIRM\"}, {\"url\": \"https://patchstack.com/database/vulnerability/yith-maintenance-mode/wordpress-yith-maintenance-mode-plugin-1-3-8-multiple-authenticated-stored-cross-site-scripting-xss-vulnerabilities\", \"name\": \"https://patchstack.com/database/vulnerability/yith-maintenance-mode/wordpress-yith-maintenance-mode-plugin-1-3-8-multiple-authenticated-stored-cross-site-scripting-xss-vulnerabilities\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"Multiple Authenticated Stored Cross-Site Scripting (XSS) vulnerabilities in YITH Maintenance Mode (WordPress plugin) versions \u003c= 1.3.8, there are 46 vulnerable parameters that were missed by the vendor while patching the 1.3.7 version to 1.3.8. Vulnerable parameters: 1 - \\\"Newsletter\\\" tab, \u0026yith_maintenance_newsletter_submit_label parameter: payload should start with a single quote (\u0027) symbol to break the context, i.e.: NOTIFY ME\u0027 autofocus onfocus=alert(/Visse/);// v=\u0027 - this payload will be auto triggered while admin visits this page/tab. 2 - \\\"General\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_message, \u0026yith_maintenance_custom_style, \u0026yith_maintenance_mascotte, \u0026yith_maintenance_title_font[size], \u0026yith_maintenance_title_font[family], \u0026yith_maintenance_title_font[color], \u0026yith_maintenance_paragraph_font[size], \u0026yith_maintenance_paragraph_font[family], \u0026yith_maintenance_paragraph_font[color], \u0026yith_maintenance_border_top. 3 - \\\"Background\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_background_image, \u0026yith_maintenance_background_color. 4 - \\\"Logo\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_logo_image, \u0026yith_maintenance_logo_tagline, \u0026yith_maintenance_logo_tagline_font[size], \u0026yith_maintenance_logo_tagline_font[family], \u0026yith_maintenance_logo_tagline_font[color]. 5 - \\\"Newsletter\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_newsletter_email_font[size], \u0026yith_maintenance_newsletter_email_font[family], \u0026yith_maintenance_newsletter_email_font[color], \u0026yith_maintenance_newsletter_submit_font[size], \u0026yith_maintenance_newsletter_submit_font[family], \u0026yith_maintenance_newsletter_submit_font[color], \u0026yith_maintenance_newsletter_submit_background, \u0026yith_maintenance_newsletter_submit_background_hover, \u0026yith_maintenance_newsletter_title, \u0026yith_maintenance_newsletter_action, \u0026yith_maintenance_newsletter_email_label, \u0026yith_maintenance_newsletter_email_name, \u0026yith_maintenance_newsletter_submit_label, \u0026yith_maintenance_newsletter_hidden_fields. 6 - \\\"Socials\\\" tab issues, vulnerable parameters: \u0026yith_maintenance_socials_facebook, \u0026yith_maintenance_socials_twitter, \u0026yith_maintenance_socials_gplus, \u0026yith_maintenance_socials_youtube, \u0026yith_maintenance_socials_rss, \u0026yith_maintenance_socials_skype, \u0026yith_maintenance_socials_email, \u0026yith_maintenance_socials_behance, \u0026yith_maintenance_socials_dribble, \u0026yith_maintenance_socials_flickr, \u0026yith_maintenance_socials_instagram, \u0026yith_maintenance_socials_pinterest, \u0026yith_maintenance_socials_tumblr, \u0026yith_maintenance_socials_linkedin.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-79 Cross-site Scripting (XSS)\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2021-36845\", \"STATE\": \"PUBLIC\", \"TITLE\": \"YITH Maintenance Mode (WordPress plugin) \u003c= 1.3.8 - Multiple Authenticated Stored Cross-Site Scripting (XSS) vulnerabilities\", \"ASSIGNER\": \"audit@patchstack.com\", \"DATE_PUBLIC\": \"2021-09-23T11:55:00.000Z\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-36845\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-03-28T16:49:27.129Z\", \"dateReserved\": \"2021-07-19T00:00:00.000Z\", \"assignerOrgId\": \"21595511-bba5-4825-b968-b78d1f9984a3\", \"datePublished\": \"2021-09-27T15:36:56.716Z\", \"assignerShortName\": \"Patchstack\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.